3 years ago

What is the domain for math?

2 answers:

8 0

Step-by-step explanation:

The domain of a function is the complete set of possible values of the independent variable. In plain English, this definition means: The domain is the set of all possible x-values which will make the function "work", and will output real y-values.

Romashka [77]3 years ago

8 0

Answer:

The x-axis.

Step-by-step explanation:

All the numbers on the X-axis can be a domain and the Range is everything on the Y-axis

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Examine the diagram. It is not drawn to scale.

konstantin123 [22]

Answer: I estimate that it is 119

Step-by-step explanation:

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3 years ago

Tell whether x and y show direct variation. Explain your reasoning. y/x =8

maria [59]

Yes, they do. if you isolate y by multiplying it by x, you must do the same to the 8. this leaves you with y=8x, which follows the direct variation format of y=kx

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3 years ago

The ellipse with x-intercepts (2, 0) and (-2, 0); y-intercepts (0, 4) and (0, -4).

masya89 [10]

Answer:

$\dfrac{x^2}{4}+\dfrac{y^2}{16}=1$

Step-by-step explanation:

If the ellipse has its x-intercepts at points (2, 0) and (-2, 0) and y-intercepts at points (0, 4) and (0, -4), then its symmetric across the y-axis and across the x-axis.

Moreover,

$a=2\\ \\b=4$